CXGN/Cookie.js

   1 /**
   2 * @fileoverview This file has been modified for ease of use.  Please download the original from
   3 * http://www.jaaulde.com/test_bed/cookieLib/ for the original (and latest) versions.
   4 *
   5 * @author James Auldridge,  Copyright (c) 2005
   6 * @version 1.2
   7 */
   8
   9 /**
  10 * A singleton Cookie-handling object
  11 * @class Cookie
  12 * Methods: get, set, del, test
  13 */
  14
  15 JSAN.use("MochiKit.Logging");
  16
  17 var Cookie = window.Cookie || {};
  18 Cookie = {
  19         get: function(cookieName) {
  20                 var cookieNameStart,valueStart,valueEnd,value;
  21                 cookieNameStart = document.cookie.indexOf(cookieName+'=');
  22                 if (cookieNameStart < 0) {return null;}
  23                 valueStart = document.cookie.indexOf(cookieName+'=') + cookieName.length + 1;
  24                 valueEnd = document.cookie.indexOf(";",valueStart);
  25                 if (valueEnd == -1){valueEnd = document.cookie.length;}
  26                 value = document.cookie.substring(valueStart,valueEnd );
  27                 value = unescape(value);
  28                 if (value == "") {return null;}
  29                 return value;
  30         },
  31         set: function(cookieName,value,hoursToLive,path,domain,secure) {
  32                 var domainRegEx = /[^.]+\.[^.]+$/;
  33                 domain = window.location.hostname.match(domainRegEx);
  34                 if(domain == 'cornell.edu') domain = 'sgn.cornell.edu';
  35                 var expireString,timerObj,expireAt,pathString,domainString,secureString,setCookieString;
  36                 if (!hoursToLive || typeof hoursToLive != 'number' || parseInt(hoursToLive)=='NaN'){
  37                         expireString = "";
  38                 }
  39                 else {
  40                         timerObj = new Date();
  41                         timerObj.setTime(timerObj.getTime()+(parseInt(hoursToLive)*60*60*1000));
  42                         expireAt = timerObj.toGMTString();
  43                         expireString = "; expires="+expireAt;
  44                 }
  45                 pathString = "; path=";
  46                 (!path || path=="") ? pathString += "/" : pathString += path;
  47                 domainString = "; domain=";
  48                 if(!domain || domain==""){
  49                         domain = window.location.hostname;
  50                 }
  51 //              if(domain=="localhost") domain = "localhost.localdomain";
  52                 domainString += domain;
  53
  54                 (secure === true) ? secureString = "; secure" : secureString = "";
  55                 value = escape(value);
  56                 setCookieString = cookieName+"="+value+expireString+pathString+domainString;
  57                 document.cookie = setCookieString;
  58         },
  59         del: function(cookieName,path,domain){
  60           (!path || !path.length) ? path="" : path=path;
  61           (!domain || !domain.length) ? domain="" : domain=domain;
  62                 Cookie.set(cookieName,"",-8760,path,domain);
  63         },
  64         test: function(){
  65                 Cookie.set('cT','acc');
  66                 var runTest = Cookie.get('cT');
  67                 if (runTest == 'acc'){
  68                         Cookie.del('cT');
  69                         testStatus = true;
  70                 }
  71                 else {
  72                         testStatus = false;
  73                 }
  74                 return testStatus;
  75         }
  76 };
  77
  78 var test = Cookie.test();
  79 if(test){
  80         MochiKit.Logging.logDebug("Javascript Cookie Setting: Works!");
  81 }
  82 else {
  83         MochiKit.Logging.logError("Javascript Cookie Setting: Failed.");
  84         var hn = window.location.hostname;
  85         if(!/\./.test(hn)){
  86                 MochiKit.Logging.log(
  87                         "Cookie failure: You appear to be using a one-word hostname (" + hn + ") without a domain, " +
  88                         "which won't work with cookies.  Try using something like " +
  89                         "localhost.localdomain, and set /etc/hosts accordingly");
  90         }
  91 }